Direct & Inverse Proportions

What is a proportion?

• When two ratios can be simplified
• When two ratios are equivalent and show the same value
• When two ratios have the exact same numbers
• When two ratios can be multiplied by 2

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Solve the proportion.

• q=2
• q=9
• q=4.5
• q=6

Tags

CCSS.7.RP.A.2B

Solve the equation for x:

• 17
• 16
• 15
• 14

Tags

CCSS.7.EE.B.4A

Solve the equation for x:

• x = -1/4

• x = 1/3

• x = -3/4

• x = 3/4

Tags

CCSS.6.NS.B.4

There were 5 ice cream cones for every 3 brownies sold at the ice cream shop. If there were 24 brownies sold, how many ice cream cones were sold?

• 8
• 15
• 40
• 29

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

The scale of a map says that 6 cm represents 15 km.

What distance on the map represents an actual distance of 6 kilometers?

• 3.6

• 2.5

• 2.4

• .42

Tags

CCSS.7.RP.A.2C

State what type of variation the equation represents.

• Direct

• Inverse

• Joint

• Neither

State what type of variation the equation represents.

• Direct

• Inverse

• Joint

• Neither

Determine the type of variation.

• Direct

• Inverse

• Neither

Determine the type of variation.

• Direct

• Inverse

• Neither